Stovepipe-joint.



M. E. PARRY.

STOVEPIPE JOINT.

APPLICATION FILED D20. 7, 1910.

WITNESSES 1 1V VE TOR. 4& xvi/M4141 M! M I ATTORNEY.

UNITED STATES PATENT OFFICE.

MARVIN E. PARRY, OF SYRACUSE, NEW YORK, ASSIGNOR T0 DAYTON 3.. FRITTS,OF

SYRACUSE, NEW YORK.

Specification of Iietters Patent.

Patented Dec. 12-, 1911.

Application filed December 7, 1910. Serial No. 596,105.

To all whom it may concern.

Be it known that I, MARVIN citizen of the United States, and resident ofSyracuse, in the county of Onondaga, in the State of New York,haveinvented new and useful Improvements in Stovepipe-Joints, of whichthe following, taken in connection with the accompanying drawings, is afull, clear, and exact description.-

This invention relates more particularly to stove-pipes and resides inthe novel manner of joining two sections, the main object being toprovide a simple and reliable connection for the sections which shalleffect a rigid joint and at the same time can be produced at a smallexpense, and furthermore will permit the joining of several sections ofa horizontally disposed stove-pipe without the use of wire generallyrequired for sustaining a pipe of considerable length.

To that end the present invention consists in the peculiar formation ofthe end portion of the pipe section which is inserted in the adjoiningsection as hereinafter fully described and claimed,

In the accompanying drawings Figure l is a side view of two sections ofa pipe joined in accordance with m invention, and Fig. 2 is alongitudinal section of the same.

Referring to said drawings 11- denotes the two pipe-sections whichtelescope as usual. The inserted end portion of a section is providedwith a ta er as indicated at 2, which taper is (pro need by crimpingsaid portion longitu inally. This taper extends from an externalcircumferential bead 3 formed on the section, which bead constitutes ashoulder against which the plain cylindrical end portion of the outer 40sectlon abuts. At the junction of the taper and head 3 the inserted endportion of a section is formed with a circumferential groove 4 to roducean outward bulge -5fitted tightij in the abuttin end portion of thead'oming section. ome distance from the bulge 5- the tapered and E.PARRY, a

portion is formed with a circumferential external bead 6. which is alsofitted tightly in the end portion of the adjoining section.

It is obvious that the tapering of. one end portion of a pipe-sectionwill permit it to be easily and conveniently inserted in the plaincylindrical end portion of an adjoining section. The diameter of thetapered end portion of the section at the center of the bead and itsdiameter at the bulge correspond and the bead is comparatively close tothe end of the taper whereby the said bead and bulge provide two remotecontact points for the end portion telescoping over the said taperedportion, thereby producing a very rigid connection for the two sections.

What I claim is A stove pipe joint, comprising a pipe section having oneend cyllndrical and the other tapering, the end of the cylindricalportion adjacent to the tapering portion bemg pressed outwardly to forma head of greater diameter than said cylindrical portion, said pipesection being formed with an inturned bead at the large end of thetapering portion and adjacent to the outturned bead, said taperingportion being also pro vided with an outturned bead having its outerdiameter substantially equal to the inner diameter of the cylindricalportion, the

beads on the tapered portion of the pipe being spaced from each otherand a separate pi c section having a cylindrical portion ofsubstantially the same diameter as the cylindrical portion of the firstnamed section and telescoping with the tapering portion of said firstnamed section and having its inner end abutting against the outturnedhead of the first mentioned cylindrical portion.

MARVIN E. PARRY.

Witnesses:

.v F. S. STOCKMAN,

WM. H. MEIER, Jr.

